Cleaning attachment for type-writing machines



(No Model.)

A. T. BROWN.

7 CLEANING ATTAGHMENT FOR TYPE WRITING MAGHINBS. No. 427,393. Patented Ma ra, 1890.

mumnmmv" UNITED STATES PATENT I OFErcE.

ALEXANDER T. BROWN, OF SYRACUSE, NEWV YORK.

CLEANING ATTACHMENT FOR TYPE-WRlTlNGlVIACHlNES.

SPECIFICATION forming part of Letters Patent No. 427,393, dated May 6, 1890.

Application filed October 28, 1889.

To all whom it may concern:

Be it known that I, ALEXANDER T. BROWN, residing at Syracuse, in the county of Onondaga and State of New York, have invented certain new and useful Improvements in Cleaning Attachments for Type-\Vritin'g Machines, of which the following is a specificatron, reference being had therein to the accompanyin g drawings.

This invention relates to cleaning attachments or brushes for type-writing machines.

The object of the invention is to produce a cleaner or brush attachment for type-writing machines in which the brush may be reciprocated across the face of the type in such manner as to clean all or a large number of the letters simultaneously.

Figure 1 is a vertical longitudinal section of so much of a common form of type-writer as is necessary to illustrate the invention with brush and brush-moving devices attached. Fig. 2 is a plan of so much of the basket and brush as will show the general relation of a parts.

the type-levers, having a hub bearin g or guide H, located below and about centrally of the types when in their lowest position. A shaft or rod I passes up through the guide and carries a type cleaner or brush. A cross-piece I near the bottom of rod I passes through a slot K in lever K. The lever K is fulcrumed on a bar, lug, or other suitable support L, near one side of the machine, and an arm M of the lever extends upward and terminates in a handle 0. A brush S is supported on the upper end of the rod I, so as to lie in a plane below the lowest position of the type or characters on the type-bars when the brush is depressed; but by reciprocating rod I the brush S will be carried up and down past the face of the letters E on the type-bars. The

rod I is thus made the support ofthe brush and may be a part of the brush. The recip- Serial No. 328,409- (No model.)

rocation of rod I is effected by means of the bell-crank lever K M, the connection between the end of the lever and the brush-holding rod permitting such reciprocation.

I11 the machine illustrated, in which the type when depressed occupy an elliptical,

appear that the form of lever is not very material, as a straight lever can be readily substituted for a bell-crank lever. Neither is the location important, as the brush-operating mechanism may be at one side or at the back of the machine. The slot-and-pin connection can be reversed in location, or any equivalent connection which will reciprocate the brush may be substituted, and on occasion the lever may be dispensed with and the brush actuated by hand.

In my patent, No. 411,421, of September 24, 1889, I describe a rotating-brush having a similar relation to the type of a type-writing machine as the brush herein shown; but the mechanism for moving that brush therein is different, and the movement of the brush was mainly rotary.

hat I claimis- 1. The combination, with the frame and printing characters of a type-Writing machine, of a cleaner-guide in proximity to said printing characters, a type-cleaner, and a support for said cleaner having sliding bearings in said guide.

2. In combination with the printing characters of a type-writing machine, a brush in proximity to said characters, a guide supporting said brush, and a lever connected to and operating said brush to reciprocate it across the face of the printing characters.

3. The combination, with the frame and printing characters of a type-writing machine, of a brush-guide in proximity to said printing characters, a brush conforming generally in outline to the position of the printing characters when in their depressed position, and a support for said brush having sliding bearing in the guide, whereby the brush may have a sliding reciprocation past the face of all the printing characters, substantially as described.

4. The combination, with a type-writing machine in which the printing characters are supported on pendent levers, of a bracket or guide below the lowest position of said levers, a sliding guide rod or brush passing through said guide, a brush on said holder, anda lever pivoted in the frame and engaging said brush- 

